Net Earnings Per Share - Dividends Declared and Paid (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
Jun. 26, 2020	Mar. 27, 2020	Jun. 28, 2019	Mar. 29, 2019	Jun. 26, 2020	Jun. 28, 2019
Earnings Per Share [Abstract]
Dividend per common share (in dollars per share)	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.14	$ 0.14
Amount, common shares	$ 23.6	$ 23.5	$ 23.4	$ 23.4	$ 47.1	$ 46.8
Dividend per share on MCPS (in dollars per share)	$ 12.5	$ 12.5	$ 12.5	$ 12.5	$ 25.0	$ 25.0
Amount, MCPS	$ 17.2	$ 17.3	$ 17.2	$ 17.3	$ 34.5	$ 34.5

Aggregate dividends paid during the period for each share of common stock outstanding.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash.

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Aggregate dividends paid during the period for each share of preferred stock outstanding.

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